xbps-repo(8): implemented 'find-files' target.

NEWS

@@ -1,5 +1,9 @@
 xbps-0.7.0 (?)
  
+ * xbps-repo(8): implemented the 'find-files' target to print which packages
+   own a file, link, directory, etc. Analogue to the one implemented in
+   xbps-bin(8). Works for local and remote repository, fetching info on-the-fly.
+
  * xbps-bin(8): added -F flag for the remove target. Unless it's set,
    packages that are dependencies of other installed packages won't be removed.
    This flag overrides this behaviour and forces the package removal.

bin/xbps-repo/Makefile

@@ -2,7 +2,7 @@ TOPDIR = ../..
 -include $(TOPDIR)/config.mk
 
 BIN =	xbps-repo
-OBJS =	main.o util.o index.o repository.o
+OBJS =	main.o util.o index.o repository.o find-files.o
 MAN = $(BIN).8
 
 include $(TOPDIR)/prog.mk

bin/xbps-repo/defs.h

@@ -26,6 +26,10 @@
 #ifndef _XBPS_REPO_DEFS_H_
 #define _XBPS_REPO_DEFS_H_
 
+#ifndef __UNCONST
+#define __UNCONST(a)    ((void *)(unsigned long)(const void *)(a))
+#endif
+
 /* From index.c */
 int	xbps_repo_genindex(const char *);
 /* From repository.c */
@@ -43,6 +47,8 @@ int	list_strings_in_array(prop_object_t, void *, bool *);
 int	list_strings_sep_in_array(prop_object_t, void *, bool *);
 size_t	find_longest_pkgver(prop_dictionary_t);
 void	print_package_line(const char *);
+/* From find-files.c */
+int	repo_find_files_in_packages(const char *);
 
 struct repo_search_data {
 	char *pattern;

bin/xbps-repo/find-files.c

@@ -0,0 +1,132 @@
+/*-
+ * Copyright (c) 2010 Juan Romero Pardines.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <stdio.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+
+#include <xbps_api.h>
+#include "defs.h"
+
+static int
+match_files_by_pattern(prop_dictionary_t pkg_filesd, prop_dictionary_keysym_t key,
+		       const char *pattern, const char *pkgver)
+{
+	prop_object_iterator_t iter;
+	prop_array_t array;
+	prop_object_t obj;
+	const char *keyname, *filestr, *typestr;
+
+	keyname = prop_dictionary_keysym_cstring_nocopy(key);
+	array = prop_dictionary_get_keysym(pkg_filesd, key);
+	if (prop_object_type(array) != PROP_TYPE_ARRAY)
+		return 0;
+
+	if (strcmp(keyname, "files") == 0)
+		typestr = "regular file";
+	else if (strcmp(keyname, "dirs") == 0)
+		typestr = "directory";
+	else if (strcmp(keyname, "links") == 0)
+		typestr = "link";
+	else
+		typestr = "configuration file";
+
+	iter = prop_array_iterator(array);
+	while ((obj = prop_object_iterator_next(iter))) {
+		prop_dictionary_get_cstring_nocopy(obj, "file", &filestr);
+		if ((strcmp(filestr, pattern) == 0) ||
+		    (strstr(filestr, pattern)) ||
+		    (xbps_pkgpattern_match(filestr, __UNCONST(pattern)) == 1))
+			printf(" %s: %s (%s)\n", pkgver, filestr, typestr);
+	}
+	prop_object_iterator_release(iter);
+	return 0;
+}
+
+static int
+find_files_in_package(struct repository_pool_index *rpi, void *arg, bool *done)
+{
+	prop_dictionary_t pkg_filesd;
+	prop_array_t repo_pkgs, files_keys;
+	prop_object_t obj;
+	prop_object_iterator_t iter;
+	const char *pkgname, *pkgver, *pattern = arg;
+	char *url;
+	int rv = 0;
+	unsigned int i, count;
+
+	(void)done;
+
+	repo_pkgs = prop_dictionary_get(rpi->rpi_repod, "packages");
+	if (repo_pkgs == NULL)
+		return -1;
+
+	iter = prop_array_iterator(repo_pkgs);
+	if (iter == NULL)
+		return -1;
+
+	printf("Looking in repository '%s', please wait...\n", rpi->rpi_uri);
+	while ((obj = prop_object_iterator_next(iter))) {
+		url = xbps_repository_get_path_from_pkg_dict(obj, rpi->rpi_uri);
+		if (url == NULL) {
+			rv = -1;
+			break;
+		}
+		prop_dictionary_get_cstring_nocopy(obj, "pkgname", &pkgname);
+		prop_dictionary_get_cstring_nocopy(obj, "pkgver", &pkgver);
+		pkg_filesd = xbps_repository_get_pkg_plist_dict_from_url(url,
+		    XBPS_PKGFILES);
+		free(url);
+		if (pkg_filesd == NULL) {
+			fprintf(stderr, "E: couldn't get '%s' from '%s' "
+			    "in repo '%s: %s'\n", XBPS_PKGFILES, pkgname, rpi->rpi_uri,
+			    strerror(errno));
+			rv = -1;
+			break;
+		}
+		files_keys = prop_dictionary_all_keys(pkg_filesd);
+		count = prop_array_count(files_keys);
+		for (i = 0; i < count; i++) {
+			rv = match_files_by_pattern(pkg_filesd,
+			    prop_array_get(files_keys, i), pattern, pkgver);
+			if (rv == -1)
+				break;
+		}
+		prop_object_release(pkg_filesd);
+		if (rv == -1)
+			break;
+	}
+	prop_object_iterator_release(iter);
+	return rv;
+}
+
+int
+repo_find_files_in_packages(const char *pattern)
+{
+	return xbps_repository_pool_foreach(find_files_in_package,
+	    __UNCONST(pattern));
+}

bin/xbps-repo/main.c

@@ -200,6 +200,13 @@ main(int argc, char **argv)
 		rv = show_pkg_files(pkgd);
 		prop_object_release(pkgd);
 
+	} else if (strcasecmp(argv[0], "find-files") == 0) {
+		/* Finds files by patterns, exact matches and components. */
+		if (argc != 2)
+			usage();
+
+		rv = repo_find_files_in_packages(argv[1]);
+
 	} else if (strcasecmp(argv[0], "genindex") == 0) {
 		/* Generates a package repository index plist file. */
 		if (argc != 2)

bin/xbps-repo/xbps-repo.8

@@ -1,13 +1,4 @@
-'\" t
-.\"     Title: xbps-repo
-.\"    Author: [see the "AUTHORS" section]
-.\" Generator: DocBook XSL Stylesheets v1.75.2 <http://docbook.sf.net/>
-.\"      Date: 18/11/2010
-.\"    Manual: \ \&
-.\"    Source: \ \&
-.\"  Language: English
-.\"
-.TH "XBPS\-REPO" "8" "18/11/2010" "\ \&" "\ \&"
+.TH "XBPS\-REPO" "8" "15/12/2010" "\ \&" "\ \&"
 .\" -----------------------------------------------------------------
 .\" * set default formatting
 .\" -----------------------------------------------------------------
@@ -80,6 +71,16 @@ to the repository pool\&. Local (by specifying a
 \fBHTTP/HTTPS/FTP URL\fR) repositories can be specified\&.
 .RE
 .PP
+\fBfind\-files\fR \fIpattern\fR
+.RS 4
+Prints the name for any package registered in the repository pool, that owns
+the file matched by \fIpattern\fR\&. Exact matches and wildcards can be
+specified\&. Please note that this will look in all packages registered
+from all repositories currently registered, so if packages are not in \fIcachedir\fR
+it will have to connect remotely to the repository to fetch the information
+\fIon the fly\fR.
+.RE
+.PP
 \fBgenindex\fR \fI/path/to/local/repo\fR
 .RS 4
 Generates a package index for a local repository as specified in its argument\&. It will look for archives with